56 lines
1.9 KiB
Java
56 lines
1.9 KiB
Java
/**
|
|
* GladiatorBrawler is a 2D swordfighting game.
|
|
* Copyright (C) 2015 Jeasonfire/Allexit
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
package com.saltosion.gladiator.systems;
|
|
|
|
import com.badlogic.ashley.core.ComponentMapper;
|
|
import com.badlogic.ashley.core.Engine;
|
|
import com.badlogic.ashley.core.Entity;
|
|
import com.badlogic.ashley.core.EntitySystem;
|
|
import com.badlogic.ashley.core.Family;
|
|
import com.badlogic.ashley.utils.ImmutableArray;
|
|
import com.saltosion.gladiator.components.CParticle;
|
|
import com.saltosion.gladiator.util.AppUtil;
|
|
|
|
public class ParticleSystem extends EntitySystem {
|
|
|
|
private static final ComponentMapper<CParticle> pm = ComponentMapper.getFor(CParticle.class);
|
|
private ImmutableArray<Entity> entities;
|
|
|
|
@Override
|
|
public void addedToEngine(Engine engine) {
|
|
updateEntities(engine);
|
|
}
|
|
|
|
@Override
|
|
public void update(float deltaTime) {
|
|
for (int i = 0; i < entities.size(); i++) {
|
|
CParticle particle = pm.get(entities.get(i));
|
|
particle.getPosition().add(particle.getVelocity().cpy().scl(deltaTime));
|
|
particle.getVelocity().add(particle.getGravity().cpy().scl(deltaTime));
|
|
if (System.currentTimeMillis() - particle.getCreationTime() > particle.getDecayTime()) {
|
|
AppUtil.engine.removeEntity(entities.get(i));
|
|
}
|
|
}
|
|
}
|
|
|
|
public void updateEntities(Engine engine) {
|
|
entities = engine.getEntitiesFor(Family.getFor(CParticle.class));
|
|
}
|
|
|
|
}
|